#include<stdio.h>
int main()
{
int a,b;
float c;
float BMI(int weight,int high);
while(scanf("%d%d",&a,&b)!=EOF)
{
getchar();
c=BMI(a,b);
if(c<18.5)
printf("Underweight\n");
if(c>=18.5&&c<=23.9)
printf("Normal\n");
if(c>23.9&&c<=27.9)
printf("Overweight\n");
if(c>27.9)
printf("Obese\n");
}
return 0;
}
float BMI(int weight,int high)
{
float d,high2;
high2=high/100.0;
d=weight/(high2*high2);
return d;
}